| Affiliation: | 1. Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, USA;2. Division of Biostatistics, Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA;3. Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA;4. Department of Medicine, Virginia Commonwealth University, Richmond, VA, USA;5. Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA;6. California Pacific Medical Center, San Francisco, CA, USA;7. Department of Internal Medicine, Medical University of South Carolina, Charleston, SC, USA;8. Department of Internal Medicine, University of Washington, Seattle, WA, USA;9. Department of Internal Medicine, University of California San Francisco, San Francisco, CA, USA;10. Division of Gastroenterology, Northwestern University, Chicago, IL, USA;11. Massachusetts General Hospital, Boston, MA, USA;12. Section of Transplantation and Immunology, Yale University, New Haven, CT, USA;13. Department of Internal Medicine, University of California, Los Angeles, CA, USA;14. Division of Digestive & Liver Diseases, Department of Internal Medicine, University of Texas Southwestern, Dallas, TX, USA |
